Roller bearing is cylindrical, conical or drum-shaped roller for rolling element bearing. Roller bearings are mainly radial cylindrical roller, double row spherical roller, tapered roller and thrust roller and structure type.
2014年9月29日星期一
Paired tapered bearing purposes described
Paired tapered bearing mainly exposed to the radial radial and axial load. Load bearing capacity depends on the outer ring raceway angle, angle the greater carrying capacity. These bearings are separable bearings, according to the number of columns bearing rolling elements into single row, double row and four row tapered roller bearings. Tapered roller bearings have tapered inner and outer ring raceways, tapered rollers are arranged between the two. All conical surface projection lines are a little get Tapered roller
bearings with the bearing axis. This design makes tapered roller bearings particularly suitable for the accommodation of combined (radial and axial) loads. Single row tapered roller bearings have an outer ring, the inner ring and a set of tapered roller by basket-shaped cage into an inner components. Tapered roller bearings are mainly used to bear radial load mainly radial and axial joint load. Compared with angular contact ball bearings, single
row cylindrical roller bearing capacity, low speed limits. Tapered roller bearings can withstand axial load in one direction, a direction to limit the axial displacement of the shaft or housing. The ability to single row tapered roller bearing axial load depends on the contact angle, ie the angle of the outer ring raceway, the greater the angle, the greater the axial load capacity. Tapered roller bearings are up to the amount of single row tapered roller bearings. In the car's front wheels, and spend the small size of the double row tapered roller bearings. Four tapered roller bearings used in large-scale cold rolling mill and other heavy machines. The ability to single row tapered roller bearing axial load depends on the contact angle, ie the angle of the outer ring raceway, the greater the angle, the greater the axial load capacity. Tapered roller bearings are up to the amount of single row tapered roller bearings. In the car's front wheels, and spend the small size of the double row tapered roller bearings. Four tapered roller bearings used in large-scale cold rolling mill and other heavy machines.
2014年9月3日星期三
a polymer-dispersed liquid crystal
Between the solid and the liquid crystal is in a liquid organic substance having a certain orderly, with the dynamic optical scattering characteristics; which has a variety of liquid crystal phase, such as cholesteric phase, a smectic phase variety, the columns are equal. Depending on the nature of the material, each Stainless steel slewing bearing phase of the liquid crystal material have been developed for large flat panel display devices, there has been developed a variety of nematic liquid crystal, a polymer-dispersed liquid crystal, a double (multiple) type liquid crystal, a ferroelectric backing bearings and anti-ferroelectric liquid crystal displays, including the development of the most successful, the market share of the largest and fastest-growing is the nematic liquid crystal displays. The liquid crystal display material is composed of a variety of small molecule organic compounds, the main structural feature of these small molecules are rod-like molecular structure. With the rapid development of people interested in research and development of liquid crystal material is growing.
liquid crystal material
2014年8月30日星期六
it is also to ensure that the same level of durability as the original
Increasing the rotation radius of curvature of the surface of the groove, the rolling bearing can reduce the frictional resistance. However, if the radius of curvature increases, the contact surface pressure between the ball and the plane of rotation between the bearing load will increase. In particular, the rotation, the durability of the bearings will decrease, thus increasing the radius of curvature of the simple approach has been difficult to achieve. DNT Andes contact position with the ball and rotating the load acting on the surface due to the size of the wheel hub bearing different characteristic change occurs, developed the new bearings. Compared with the original, in the contact position of the straight running is increased when the radius of curvature of the trench, and the radius of curvature of the contact position split tapered roller bearing during rotation remains the same as the original. By this method, when the straight traveling wheel rolling bearing to reduce frictional resistance, it is also to ensure that the same level of durability as the original. It also reduces the product than the original preload range, further reducing the frictional resistance.
Previously, the company accounted for by reducing wheel bearing friction half of the seal sliding resistance, developed about 15% lower friction wheel bearing seal, and by virtue of the product development market. The development of the use of technology that allows the wheel hub bearing rolling resistance reduced by about 25%. Coupled with a low friction bearing seal design allows maximum reduction of friction when traveling Cylindrical roller bearing straight 40%. Development of large wind power bearing ranks among the world's most advancedAn investment of 250 million yuan in the Shanghai Electric Wind Power bearing large production line technological transformation projects, recently completed and put into operation in Shanghai. The first 3.6-megawatt offshore wind power bearing downline, indicates that China already has a world-class innovation and efficient wind power bearing design and development and manufacturing capabilities, as China's "Twelfth Five-Year" period to develop wind power industry reinforce the foundation.
2014年8月24日星期日
paired tapered bearing Liaoning Coastal Economic Zone grasp opportunities
the Chinese bearings are Wafangdian Bearing industrial output reached 23 billion yuan (RMB), an increase of 29.2%; industrial added value of 35.3 billion yuan, an increase of 28.8%, the bearing industry has become the first Wafangdian an industry. Wafangdian party secretary Xing-Wei Liu said the city is in accordance to build two industrial clusters and the idea of the six industrial base, the introduction of nurturing top talent, improve the high-end research and development capabilities in an effort to "bearing capital" Wafangdian, playing with a tip the development of Cylindrical roller bearing a world-renowned city bearing capacity.
Area of less than 3,800 square kilometers of Wafangdian, but it is the birthplace of China's bearing industry, developed Tapered roller bearings more than 500 years of "ZWZ" led by bearing production and ancillary businesses. Among them, the size of the business 258; sales revenue over $ 50 million enterprise 27 million over the business 9. 2009 achieved sales revenue of over 150 bearing billion. Bearing industry Thin section bearing practitioners 5 million, accounting for 16.1% of total employees in the same industry, accounting for about 20% of the national total output value of the industry.
Liaoning Coastal Economic Zone grasp opportunities
Xing-Wei Liu stressed Wafangdian in Liaoning coastal economic zone are to seize the development of open and Dalian global urbanization strategic opportunities, and vigorously promote coastal paired tapered bearing development, vigorously develop strategic emerging industries, to enhance urban functions, improve people's livelihood well-being, for the "second five "to achieve a new leap in scientific development and lay a solid foundation, built in the Bohai Sea region will Wafangdian competitive emerging modern industrial city.
50 selected Chinese bearing industry
2014年8月19日星期二
paired tapered bearing Speech forum four experts, scholars
During the Fair, Luoyang Bearing Industry Association hosted the 2013 China (Luoyang) Bearing Industry Forum. Forum Luoyang Bearing Industry Association Ye Jun chaired the forum by China Bearing Industry Association executive vice president Wang Tapered roller bearings announced the opening of China Bearing Industry Association specifically Fellows, senior engineer Ho plus group, Mechanical Engineering Department of tapered bearing niversity Sok double rich Ph.D., Luoyang bearing Science & Technology chairman Dr. Wu paired tapered bearing and Beijing Institute of Technology School of mechanical and Vehicular Engineering, Dr. Wang in the other four experts and scholars at the forum were on "China's bearing industry to upgrade, from large to strong roadmap" "the Present Situation and development Strategy of high-end bearing our", "the latest development of China's high-performance bearing technology", "high Performance Rolling basic research" and other major issues delivered a wonderful speech.
Part of professors and graduate students from Zhejiang, and Guangdong Province, Luoyang City, bearings and bearing related businesses and Tsinghua University, Beijing Institute of Technology, Hefei University of Technology, Henan HKUST, Xi'an precision bearings University, Southeast University and other universities and Luoyang City, the industrial parks and government industries authorities responsible persons a total of 300 people attended the forum. Speech forum four experts, scholars, on the Chinese bearing industry in the development of major directional issues raised test the value of advice and ideas for bearings and bearing related enterprises to achieve the transformation and upgrading, speed up industrial upgrading, product level enhance the core competitiveness provided important guidance for Luoyang bearing industrial transformation and upgrading, structural adjustment and healthy development of the industry will have a major impact. Forum speakers praise the participants.
2014年7月28日星期一
improvepaired tapered bearing the load capacity and rigidity
bearings distributor, professional sales agents bearings, bearings provide customers with quality products that help companies reduce costs, improve economic efficiency and other aspects of business has made tremendous contributions. We learned paired tapered bearing from the distributor of Bearing Stainless steel slewing bearing Corporation announced : In order to adapt to the ball screw support machine part , developed to achieve " world's largest " load capacity angular contact ball bearings and machine tools as bearing series of product supply .
distributor, to understand the mechanism and characteristics of
angular contact ball bearings ball through increased size and maximizing the number of balls , improve the load capacity Roller Bearing and rigidity , longer product life , because with both sides sealed , so no installation bearing cleaning , and lubricating plus oil Slewing Bearing addition, the - sealed bearings have a long life oil , no way to add fat . Moreover, the mounting bolt holes located in the outer ring , bearing box is easy to install . Since the sealing lip and the improvement it can only result in increased friction loss torque
2014年7月24日星期四
the vast majority of medium and large companies are now series bearing products do not need a full inspection
Bearing outer ring after quenching, tempering and other heat treatment after , can improve product strength, hardness , wear resistance , fatigue strength and toughness . Previously, the use of process equipment bearing mesh belt furnace and quenching furnace rollers , Slim-bearing tempering, there has been distortion problems affecting the efficiency quality. Especially greater than 150 mm in outer diameter of the large product , the deformation is more pronounced. In recent years, bearing the company's market has been expanding from the traditional automotive industry market more towards wind power bearings, machine tool bearings and other emerging industries range , product specifications growing, medium and large Slewing Bearing outer ring more and more . How to solve the problem of a product deformation caused by the traditional process , the company has become an urgent need to address the "big obstacle ."
Since the deformation meet the requirements, the vast majority of medium and large companies are now bearing products do not need a full inspection , plus reducing stress to both shaping and processes , in the middle class remains unchanged, the product flow rate, greatly improving the production efficiency. Furthermore , the bearing outer taper becomes smaller, the subsequent grinding allowance is reduced accordingly. In terms of cost savings , shaping, five employees to streamline the inspection process , the annual wage bill savings of at least 200,000 yuan ; same time, to reduce stress and subsequent shaping of the original 40,000 yuan per year of electricity use , the benefits of these savings are very impressive .
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